Roof Products, Inc. (RPI) has specialized in manufacturing prefabricated roof curbs and other roof accessories nationwide for more than 45 years. We have provided many solutions for the industry as well as training for Architects and Engineers in the proper detailing and specifying of prefabricated roof curbs. Roof Products, Inc. manufactures a complete line of roof curbs, expansion joints, equipment supports, adapters, or any type of penetration for new or retrofit projects plus supplies skylights, smoke vents, and roof hatches. Roof Products Inc., is a company that also offers roof curb surveys on existing projects.
Unfortunately, equipment manufacturers fabricate improper roof curbs because they do not design them with leak prevention in mind. Problems with different kinds of roof decks, insulation factors, and pitches are not considered in the designs, as evidenced in their typical roof curb details.
Residential Roof Repair
RPI has over 45 years experience in the Roofing Curb industry. Prefabricated Roof Curbs and custom engineered systems specifically for your architectural designs. We helped create the very specifications the industry is built on.
Residential Roof Replacement/Installation
Pressure-treated nailers are provided not only for receiving the roofing felts but also for eliminating noise transfer. Curbs are manufactured from 14- or 18-gage galvanized or galvalume material and internally reinforced with *25 x 28 mm (1 x 1-1/8 in.) angles, placed every 610 mm (24 in.) o.c. for a curb with any dimension of 915 mm (36 in.) or longer. They can be fabricated to any height or roof pitch with options such as aluminum, stainless steel, burglar bars, wider nailers, and many other custom specifications.
Custom PFRCs were developed to eliminate roof leaks. All roof curbs should be a minimum of 200 mm (8 in.) above the finished roof and should be welded or sheet-screwed to a metal, wood, or tectum deck or to the structural steel. On a concrete roof deck, ram setting is the most popular. The curbs are insulated with 40 mm (1.5 in.), 1.4 kg (3 lb) density of rigid fiberglass insulation to reduce condensation. If the insulation is not applied at the factory, the roofer must cut in insulation at the job, which is difficult and more expensive, especially if curbs are canted and pitched.